CFM Performance Billet Valve Cover Breather Kit for 2002-2015 Mustang GT

[06 T-RED S/C GT]

I have the exact take on it as Kelly. A modern vehicle with boost, having tighter tolerances doesn't absolutely need the vacuum pull to get stuff out and help seal rings in my opinion. I like to keep it simple and effective. Breathers are cheap and easy and prevents any oil from going back into the intake from the crankcase. while allowing crankcase pressure to vent.

I have been running breathers on my mustangs for 15+ years. My observations have been the passenger side and oil cap breather being open all the time allow it to escape and see the most oil collection and the breather filters need cleaned more often. The other side with the pcv check valve only vents under boost when there is enough pressure to come out that side. My driver side gets very little oil on it compared to the other side and rarely needs cleaned. You do want to check and change your oil more often on a full breather car as you do get moisture over time. Not significantly different. And I change the oil in my car once a year anyway regardless of miles.

I understand guys like closed system with vacuum from the case where they can collect the oil and don't have any smell that bothers some. So it boils down to what you prefer and want for your car.

Being that you've been running breathers on your mustangs for 15+ years with no issues, this would then appear as the most effective way to keep crankcase oil from getting into the intake while at the same time vent the crankcase..

However I'm still having trouble understanding how most of your oil is being collected on your passenger side, as opposed to your PCV driver's side ?

Prior to installing my current oil separator and check valve oil cap breather, it was my driver's side that collected crankcase oil and then into the intake manifold..

As I mentioned in a previous post, since I've been running the combo of the CFM oil cap breather with integrated check ball valve and oil separator, I haven't noticed any further crankcase oil going into the intake manifold so far, but as I also mentioned, if it does not work out ? Then I will look into either running breather filters or as Kelly mentioned, look into breather tanks just as he does, as an alternative..

 

[BruceH]

Being that you've been running breathers on your mustangs for 15+ years with no issues, this would then appear as the most effective way to keep crankcase oil from getting into the intake while at the same time vent the crankcase..

However I'm still having trouble understanding how most of your oil is being collected on your passenger side, as opposed to your PCV driver's side ?

Prior to installing my current oil separator and check valve oil cap breather, it was my driver's side that collected crankcase oil and then into the intake manifold..

As I mentioned in a previous post, since I've been running the combo of the CFM oil cap breather with integrated check ball valve and oil separator, I haven't noticed any further crankcase oil going into the intake manifold so far, but as I also mentioned, if it does not work out ? Then I will look into either running breather filters or as Kelly mentioned, look into breather tanks just as he does, as an alternative..

It has to do with how the air is exiting the motor. The 3v is designed by Ford to take air in from the passenger side and have it sucked out from the driver side, this is why the driver side has the pcv valve.

When you put breathers on there isn't anything pulling the crankcase air out the drivers side so it just goes out however it wants to which is usually the passenger side. I ran breathers for a short time and I experienced the same thing, the really oily breather was the passenger side. In my case it was probably because I didn't remove the pcv valve from the valve cover.

My guess is that it was because the vacuum was no longer sucking the pcv valve open and there wasn't enough crankcase air to push it open during normal driving so the only exit was via the passenger (no pcv valve in the passenger side) side. I don't know this for fact, it's only a guess.

 

[07 Boss]

It has to do with how the air is exiting the motor. The 3v is designed by Ford to take air in from the passenger side and have it sucked out from the driver side, this is why the driver side has the pcv valve.

When you put breathers on there isn't anything pulling the crankcase air out the drivers side so it just goes out however it wants to which is usually the passenger side. I ran breathers for a short time and I experienced the same thing, the really oily breather was the passenger side. In my case it was probably because I didn't remove the pcv valve from the valve cover.

My guess is that it was because the vacuum was no longer sucking the pcv valve open and there wasn't enough crankcase air to push it open during normal driving so the only exit was via the passenger (no pcv valve in the passenger side) side. I don't know this for fact, it's only a guess.

That is exactly correct. If there is no vacuum to open the valve and crank case pressure builds, it will reverse the flow and flow out of the passenger side. This is why i always recommend breathers for the boosted applications. This is why this CFM oil cap breather is nice to have. it will help relieve pressure while under boost and keep the stock PCV system flowing during normal operation.

 

[06 T-RED S/C GT]

No problem Rocky.

I really like the PCV/Sealed system. Honest.

Just not with a substantial amount of boost. Ford did not intend to evacuate pressurized crankcases with as much blow by as a boosted car makes, unfortunately.

I actually made a whole new PCV system on one of my cars. I modified the VCs with larger openings and used a larger universal PCV valve, and used all -12 lines and fittings. If I can find a pic, I will try and share it. That was years ago, after my first issues with crankcase pressure on my '96 Mustang.

I couldn't agree more Kelly.. As Ford at the very least should had designed a much better PCV system that properly evacuates/vents the crankcase without having to resort to installing air/oil separators, breather kits, vacuum pumps and so forth..

Especially when it concerns their factory boosted cars, as in the Shelby GT500, the SVT Cobras that came before them and the current EcoBoost 4 and 6 cyl engines in which Ford knows full well creates substantial amount of crankcase/manifold pressure when under boost/WOT..

IMHO the engineers over at Ford have many years of technical knowledge under they're belts and should therefore know better when it comes to designing an efficient ventilation system that actually works in both non and boosted conditions..

In the meantime, I would definitely be very interested in learning more about the PCV system that you designed.. Hopefully you'll be able to find the pics and share them, as I'm also very interested in taking a look at them as well..

As I mentioned before, the combination of the oil separator and oil cap breather with integrated check ball valve, seem to be working in preventing crankcase oil from getting into the intake manifold during non boosted/WOT conditions, however I don't know for certain how effective they'll work under boosted/WOT conditions, as I haven't ran my car hard with them yet to find out.. So until then, I remain both optimistic and cautious..


-Rocky

 

[06 T-RED S/C GT]

It has to do with how the air is exiting the motor. The 3v is designed by Ford to take air in from the passenger side and have it sucked out from the driver side, this is why the driver side has the pcv valve.

When you put breathers on there isn't anything pulling the crankcase air out the drivers side so it just goes out however it wants to which is usually the passenger side. I ran breathers for a short time and I experienced the same thing, the really oily breather was the passenger side. In my case it was probably because I didn't remove the pcv valve from the valve cover.

My guess is that it was because the vacuum was no longer sucking the pcv valve open and there wasn't enough crankcase air to push it open during normal driving so the only exit was via the passenger (no pcv valve in the passenger side) side. I don't know this for fact, it's only a guess.

All that you mentioned makes perfect sense to me Bruce, which is exactly why the PCV valve should be removed before running an open breather set up..

Just as you said, with the vacuum no longer sucking the PCV valve open, there's really no where else for the crankcase air to escape..

So as far as I'm concerned, your guess seems pretty accurate and logical IMHO..


-Rocky

 

[06 T-RED S/C GT]

That is exactly correct. If there is no vacuum to open the valve and crank case pressure builds, it will reverse the flow and flow out of the passenger side. This is why i always recommend breathers for the boosted applications. This is why this CFM oil cap breather is nice to have. it will help relieve pressure while under boost and keep the stock PCV system flowing during normal operation.

Just want to make certain you're aware I'm currently running the CFM oil cap breather with just an oil separator.. So I'm hoping it will help relieve pressure when under boost/WOT while keeping the stock PCV system fully functional during normal driving operation ..

 

[07 Boss]

Just want to make certain you're aware I'm currently running the CFM oil cap breather with just an oil separator.. So I'm hoping it will help relieve pressure when under boost/WOT while keeping the stock PCV system fully functional during normal driving operation ..

Should work fine.

 

[BruceH]

I couldn't agree more Kelly.. As Ford at the very least should had designed a much better PCV system that properly evacuates/vents the crankcase without having to resort to installing air/oil separators, breather kits, vacuum pumps and so forth..

Especially when it concerns their factory boosted cars, as in the Shelby GT500, the SVT Cobras that came before them and the current EcoBoost 4 and 6 cyl engines in which Ford knows full well creates substantial amount of crankcase/manifold pressure when under boost/WOT..

IMHO the engineers over at Ford have many years of technical knowledge under they're belts and should therefore know better when it comes to designing an efficient ventilation system that actually works in both non and boosted conditions..

In the meantime, I would definitely be very interested in learning more about the PCV system that you designed.. Hopefully you'll be able to find the pics and share them, as I'm also very interested in taking a look at them as well..

As I mentioned before, the combination of the oil separator and oil cap breather with integrated check ball valve, seem to be working in preventing crankcase oil from getting into the intake manifold during non boosted/WOT conditions, however I don't know for certain how effective they'll work under boosted/WOT conditions, as I haven't ran my car hard with them yet to find out.. So until then, I remain both optimistic and cautious..


-Rocky

Did you ever think that the Ford engineers did look at potential problems and decided their design was what they wanted to go with? Do you ever hear of problems with any factory Ford boosted motors that haven't been modified?

 

[06 T-RED S/C GT]

Did you ever think that the Ford engineers did look at potential problems and decided their design was what they wanted to go with? Do you ever hear of problems with any factory Ford boosted motors that haven't been modified?

When issues concerning crankcase oil getting into the upper intakes from GT500 owners ? Yes, I consider that as a problem.. IMHO Ford should had realized this from the beginning as it shouldn't require the owner having to make modifications in order to prevent crankcase oil from entering the intake manifold due that the factory PCV system becomes ineffective while under boosted conditions !

 

[06 T-RED S/C GT]

Should work fine.

Thanks again, I really appreciate it

 

[BruceH]

When issues concerning crankcase oil getting into the upper intakes from GT500 owners ? Yes, I consider that as a problem.. IMHO Ford should had realized this from the beginning as it shouldn't require the owner having to make modifications in order to prevent crankcase oil from entering the intake manifold due that the factory PCV system becomes ineffective while under boosted conditions !

What problems is this causing? Oil in the intake manifold is a normal even for a n/a motor. We put separators in to lessen it but the fact is that stock, unmodified motors run problem free for many miles even with this oil in the intake and no separator.

Both my Whipple and DOB collected oil in the intake. I ran a separator but the smallest amount of oil vapor will coat the inside of an intake. It never caused an issue with either setup.

For me a problem would be something that caused failure in the motor or that affected the performance of the motor. Given the choice I'd take a little oil film inside the intake manifold over crankcase emissions in the cabin. But that's me. In the case of Ford I don't think they have much choice.

What do you think Ford should of designed for an emissions legal supercharged car? Remember that it has to remain emissions legal or they can't sell it.

 

[StangPhD]

I am amazed that this thread has morphed into this................

 

[BruceH]

I am amazed that this thread has morphed into this................

I got sucked in a few pages back. Thought it was a done deal but I keep letting myself get sucked in.

Thanks Obama.

 

[06 T-RED S/C GT]

I am amazed that this thread has morphed into this................

It morphed into this because of me.. So I'll take the entire blame for it !

 

[06 T-RED S/C GT]

I got sucked in a few pages back. Thought it was a done deal but I keep letting myself get sucked in.

Thanks Obama.

Yeah I know.. It's my fault for even starting up this thread to begin with lol.

 

[06 T-RED S/C GT]

What problems is this causing? Oil in the intake manifold is a normal even for a n/a motor. We put separators in to lessen it but the fact is that stock, unmodified motors run problem free for many miles even with this oil in the intake and no separator.

Both my Whipple and DOB collected oil in the intake. I ran a separator but the smallest amount of oil vapor will coat the inside of an intake. It never caused an issue with either setup.

For me a problem would be something that caused failure in the motor or that affected the performance of the motor. Given the choice I'd take a little oil film inside the intake manifold over crankcase emissions in the cabin. But that's me. In the case of Ford I don't think they have much choice.

What do you think Ford should of designed for an emissions legal supercharged car? Remember that it has to remain emissions legal or they can't sell it.

Look ! I'm not here to start up a thread war, nor looking to suck anybody into anything.. I was just responding to Kelly's last post in this thread, as he brought up some very good points..

I also never implied that just a small amount of crankcase oil is bad or harmful either, however when it concerns excess amounts ? Then yes, it does become bad when oil ends up coating the blower's internal blades along with restricting air flow to the intercooler and eventually causing engine seals to fail..

For my particular application, other than having the Saleen PD blower.. There have been no other engine modifications whatsoever, but up until I added my current oil separator and oil cap breather, there was more than just what you consider as normal amounts of crankcase oil getting into the intake manifold and coating both my throttle body and CAI intake tube..

In addition, I also had a compression and leak test done in which my rings and seals were fine.. Therefore I had no other idea as to what else could had been causing the amount of blow by getting past the seals, rings ect..

As I also mentioned in this thread before, I don't run my car at WOT/boost very often, so once again I'm at a complete loss as to what could had been causing the amounts of crankcase oil that I was getting under mostly normal driving conditions..

With that being said, I fully admit that I don't have the technical experience as most of you have and therefore am far from being an expert when it comes to engine builds.. Which is exactly what the purpose of these forums were designed for and why I became a member to begin with, is to learn and seek knowledge from those who do..

In the meantime, If I've offended anybody in anyway ? I just want to set the record straight by saying that was never my intention and once again, I was responding to what another member brought up in his post and nothing more..

 

[BruceH]

It's all good. I think we all tend to interpret things on the internet differently at different times. Things that would be a normal bs session in real life can morph out on the internet because there aren't facial inflections, tone of voice, body language, etc.

Absolutely do what you think is right for your situation. I'm usually the guy doing what the smart people say not to do. Probably 90% of the time anyway. I do think the cap this thread was originally about is a good idea.

 

[BMR Tech]

Emissions. That is the key word.

Ford engineered to ensure that gearheads see the highest Intake Air Temps and the most restriction possible! lol

 

[BruceH]

Emissions. That is the key word.

Ford engineered to ensure that gearheads see the highest Intake Air Temps and the most restriction possible! lol

That's ugly. From a GT500 or a Terminator? I wonder what a shot of meth injection would do to clean it.

 

[06 T-RED S/C GT]

It's all good. I think we all tend to interpret things on the internet differently at different times. Things that would be a normal bs session in real life can morph out on the internet because there aren't facial inflections, tone of voice, body language, etc.

Absolutely do what you think is right for your situation. I'm usually the guy doing what the smart people say not to do. Probably 90% of the time anyway. I do think the cap this thread was originally about is a good idea.

We all know there's pros and cons to both the factory PCV system and open breathers in which there's no perfect solution..

Therefore it really depends on personal preference as to which system works best for their particular application.. I suppose the reason once again for going with the oil cap breather/oil separator combo was to find a way for venting the crankcase during WOT/boost, while at the same time keep the factory PCV system functional under normal driving conditions when WOT/boost is not a factor..

However on the other hand, after reading over Kelly's posts.. I now have a much better understanding for those preferring to run open breathers over the factory PCV setup, in which I agree that when under high boosted conditions that see a lot of off road/track use.. IMO an open breather system would then appear to be the better option, but under normal driving conditions and for mostly street applications, I would still recommend keeping the factory PCV system fully functional under vacuum along with using an oil separator/oil cap breather combo that includes a one way check valve..

Anyhow I totally agree about doing what you feel is right for your particular situation..



-Rocky